Home / 15,383.90-23,072.70-4,287.80

Finding the Fourth Proportional to 15,383.90, 23,072.70 and 4,287.80

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Solution

The fourth proportional to 15,383.90, 23,072.70 and 4,287.80 is: 6,430.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,383.90 : 23,072.70 = 4,287.80 : x
  2. Step 2: Convert to fraction form
    15,383.90/23,072.70 = 4,287.80/x
  3. Step 3: Cross multiply
    15,383.90x = 23,072.70 × 4,287.80
  4. Step 4: Simplify right side
    15,383.90x = 98,931,123.06
  5. Step 5: Solve for x
    x = 98,931,123.06/15,383.90
  6. Step 6: Final answer
    x = 6,430.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.